{"title":"Graphene-based Millimeter Wave Spatial Amplitude Modulator With Four Transmission Poles","authors":"Yutong Zhao, Bian Wu, Yu Zhang, Yunbin Zhou, Wei Zhang, Lianxing He","doi":"10.1109/APCAP.2018.8538278","DOIUrl":null,"url":null,"abstract":"We present an amplitude controllable spatial modulator, which consists of an artificially constructed metamaterial and a graphene layer, to realize four transmission channels in gigahertz (GHz). The four transmission poles TP<inf>1</inf>, TP<inf>2</inf>, TP<inf>3</inf> and TP<inf>4</inf> are located at 26.5GHz, 29.3GHz, 32.6GHz and 35.9GHz, respectively. By applying a bias voltage between the metamaterial and the ptype silicon layer, more than 60% modulation depth is achieved for TP<inf>1</inf>, TP<inf>2</inf> and TP<inf>3</inf>, the modulation depth for TP<inf>4</inf> is 54.5%. Therefore, the modulator indicates many potential applications for multichannel communication system.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APCAP.2018.8538278","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
We present an amplitude controllable spatial modulator, which consists of an artificially constructed metamaterial and a graphene layer, to realize four transmission channels in gigahertz (GHz). The four transmission poles TP1, TP2, TP3 and TP4 are located at 26.5GHz, 29.3GHz, 32.6GHz and 35.9GHz, respectively. By applying a bias voltage between the metamaterial and the ptype silicon layer, more than 60% modulation depth is achieved for TP1, TP2 and TP3, the modulation depth for TP4 is 54.5%. Therefore, the modulator indicates many potential applications for multichannel communication system.
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